Accumulating mechanism for calculating-machines.



A. KNISTROM.

ACCUMULATING MECHANISM FOR CALCULATING MACHINES.

APPLICATION FILED JAN.8.19|6.

1,285,234. Patented Nov. 19, 1918..

H $HEETSSHEEI 2.

ATTORNEYS A. KNISTBOM.

ACCUMULAIING MECHAMSM FOH BKLCULATING MMCHINIES.

APPLICAHON HLED man le.

1 ,285,234. Patented Nov. 19, 1918.

INVENTOR .lfw'lm, A r-r, 0LT; War-L,

k} Arm/Mrs A. KNJSTROM. ACCUMULATING MECHAMSM FOR CALCULATING MACHINES.

APPLICAHUN FILED 1AN.8.'I9!5.

Patented Nov. 19, 1918.

H SHEETS-SHEEI 4.

NVE/VTOR VIIIIII/ -al ATTORNEYS A. KNISTROM ACCUMULATING mcHAmsM FOR CALCULATING MACHINES.

MIHCRHON HLEU JAN. 8. I935.

00 1 9 1T 1: Ou 1 L 0 E km s M m 6 l 3 P WNW 014.4, ATTORNEYS R I m W M.M f

A. 'KNISTRUM.

ACCUMULATIHG MECQANISM FUR CALCULATING MACHINES. APPLICATION HLED m. s I9l6.

1,285,234- Patented Nov. 19, 1918.

I4 SHEETS-SHEET 6- K4; ATZORNEYS A KNISTRUM.

ACCUMULATING MECHANISM FOR CALCULATING M ACHINES,

APELiCAHDN FILED IAN. 8.19i6,

Patented Nov. 19. 1918 INVENTOR BY @0014 WHQL.

4 ATT RNEVS A. KNISTROM. fi'LGUMULAHNG MECHANISM FOR CAtCULAHNG MACHINES.

N SHEETS-SHEEI 8.

Patented Nov. 19, 1918.

APPLICAHON HLUJ JAR-8. ISIEY 1,285,234.

INVEA'TUR J4. ea-r +L M MzmA/HS A. KMSTROM.

AccuMuLMmG MECHANISM FOR CALCULATING MACHINES.

APPLICAHDN HUED JAN. 3 X936.

Patented Nov. 19, 1918.

I4 SHEETS--SHEE1 9,

mvmran A. m 4:, Br

W141 ML AA... ATIORMEYS A. KNISTRUM. ACCUMULATING MECHAMSM FOR CALCULAHNG MACHIN PatentPd Nov. 19, 1918;

APPLICAHON I-ILED JAN- E, I9i5- H SHEETS-SHEE! 10 R m H W.

.lflw im I 7 1 W M ATIORNEYS A. KNISTROM.

ACCUMULATING MECHANISM FOR CALCULATING MACHINES.

APFLICAHGH FRED JAN.8.19IG.

Patented Nov. 19, 1918.

i4 SHEETS-SHEET l I.

A. KNISTROM.

ACCUMULATING MECHANISM FOR CALCULATING MACHINES.

APPLICAHUN FILED JAN. 3. l9l6.-

Patented Nov. 19,1918.

m E ax Q 2% m 3H m M o 0% 0 Q n Jm m3 m w .28 $2 bb m8 m2 5 Q: N 5 $2 A 3 2m 1 mm h 1 m; m: w \E. a h 7 7W 0 V m@ L \\!r: r \Q%. & 1&5 33 mm *9 8 g mg g Q g g N wt w Q. Q E ,S ml N A. KN|STROM. ACCUMULAHNG MECHANISM FOR CALCULATING MACHINES.

APPLICAHQN FILED JAN. 3. ISIS.

mm 0 5w W O lafvntod Nuv. 19,1918,

3 ms I \mwm m3 m ms X AF'IUCMION HLED JAIL B. i9l6.

Patented Nov. 19, 1916.

I4 SNEETS-SHEET i4 {MENTOR UNITED STATES PATENT OFFICE.

AUGUST KNISTBOM, OF BINGHAMTON, NEW YORK, ASSIGNOR TO BUNDY MANUFAC- TUBING COMPANY, OF ENDICOTT, NEW YORK, A CORPORATION OF NEW YORK.

ACCUMULATING- MECHANISM FOR CALCULATING-MACHINES.

Application flied January 8 To all whom it may concern Be it known that I, Aoous'r Knis'ruoiu, a subject of the King of Sweden, residing at Binghamton, in the county of Broome and State of New York, have invented certaln new and useful Improven'ients in Accumulating Mechanisms for Calculating- Machincs, of which the following is a full, clear, and exact description.

The invention which forms the subject of the present application relates to con1- puting or accumulating mechanisms for calculating machines. particularly machines for performing numerical addition. The chief object of the invention is to provide improved mechanism for the purpose indicated which shall operate with the necessary unfailing accuracy. A further object is to provide computing mechanism which will add numbers not only arithmetically but also algrebraically, that is, will perform the operation of arithmetical subtraction as well as addition, at the will of the Operator. To these and other ends the invention consists in the novel features of construction and combinations of elements hereinafter described.

The preferred embodiment of the inven- .tion is illustrated in the uccompa'nying 30 drawings, in which Figure 1 is a longitudinal section. somewhat diagrammatic in character and shou ing only parts necessary or pertinent to an understanding of the present invention.

Fig. 2 is rvphu view. with the casing (which incloses the complete uuu-hinel n horizontal section.

Fig. 3 is a (.lOSH-SPCHOI], substantially on line 3-3 of Fig. 2.

Fig. 4 is a detail view on a large scale, partly in cross section and partly in front. elevation. showing portions of two adjoining and interconnected computing or accumulating mechanisms.

Figs. 5, 6 and Tare detail side views of parts of the computing or am-unmlaliug mechanisms.

Fig. 8 is a longitudinal section on line 8 8 of Fig. 2. r

Fig. .l is a detul sectional plan view on line !)---9 of Fig.8.

Fig. H) is a detail side view. on a large scale. of certain parts shown on a smaller scale in Fig. 8.

Figs. 11, 12. 13 and 11 are longitudinal Specification of Letters Patent.

Patented Nov. 19, 1918.

. 1916. Serial No. 70.908.

section on lines 1l--1l, l'.2-l;2, l3-1;5, and l414 of Fig. 2.

Figs. 14 and 15 are detail perspective views of certain parts shown in side elevation in Fig. 14.

Fig. It: is a detail side view oi a locking mechanism (described in paragraph 23$), hereinafter) provided to prevent injury to the machine in the operation of clearing or setting the machine back to zero.

Fig. 17 is a detail view. in side elevation and on a large scale. of certain parts of two adjoining and inl'crconnecttal c mputing mechanisms.

Fig. 18 is a detail plan View, partly in horizontal section. of two adjoining and interconnecttal computing mechanisms.

Fig. 19 is a section about on line 19-19 of Fig. 18.

Fig. 20 is an end view. partly in cross section. of the mechanisms shown in Fig. 18.

Fig. 21 is a section about on line lb-21 of Fig. 18.

Fig. 22 is a side view of the subtraction cams. showing them dereloped in a plane, and Fig. 22} is a similar view of the addition cams.

Figs. 24, 25 and i are sections about on lines 2-l' H, :ZS 'ZF) and 2(' -'1(' of Fig. 18.

Fig. 27 is a section on the same plane as Fig. 24 (that is. on line 21-24 of Fig. 18) but omitting certain parts and showing others. and also showing some parts in di ferent operative positions from those III which they are shown in Fig. :24.

Figs. 28 and 2.9 are detail side views of the supporting frames employed in the computing mechanisms.

Figs. 30. 31 and 32 are fragmentary side views. looking toward the left of the machine from the inside, of certain parts associated with the subtraction key. and the t0- lal (or clearing) key. and actuated or set thereby.

1. [fry-controller] m'fuufin (lr l r'r'm- -Tl'le numbers or items upon which the. computiug operationsare to be performeihare put into the machine" by any convenient means, as for example by longitudinally reciprocatory elements 100. Fig. l, of which there is one for each column or notational order. In the machine described in my prior application Ser. No. 75 .2(il. filed April 5, 1913. each sliding member 100 has on one side a ru-iprocator r actuating member 100;

and alongside of the latter is a stepped controllingonembcr 107. ()n the member 100 is a pivoted three-armed dog 112, the upper arm of which is connected to the controlling member 107 by the pin and vertical slot construction shown at 113, so that the two members will move in unison but with the capability of limited movement of one rela live to the other. ()1) the horizontal arm of the dog 1 12 is a laterally bent linger 114 adapted to engage a shoulder 115 on the upper ed e. of the actuating member 10."). Tl'nrmenfivers 100, 105 and 107 being all in the home or extreme rightward position (as viewed in Fig. 1), with the shoulder 115 in rear, 0 to the right, of the finger 114, it will be clear that if the dog 112 be swung i-ounlerclocluvise and the member 105 advanred, the controlling member 107 and the lider 100 will also be advancml; and that if the member 107 be arrested at any point in its path of advance the continued ielt 'wawl or forward movement of the slidci 100, through the agency of the dog 112, tin gel 114 and :Ll'llllll-tltl ill), yvill ruck the dog izl-iiclidlii and thereby disengage the said linger from the shoulder. The members 100 and 107 being tied together by means 'of the dog. the member 100 comes to rest but the actuating member 105 is free to continue its movement to the end of its path. The actuation of the dogs 112 to cause the fingers 114 thereof to engage the shoulders 115 is efi'ected by a series of horizontally movable members 119 (Fig. 12) pivoted at their rear ends to a series of vertical arms 118 fixed on the transverse shaft 117. At the other end ach member 119 carries a pawl 123 havf an inclined toe adapted to engage and depress the adjacent finger 11-1 when the raid rneznlwr is advanced by the rocking f shaft 117, which is actuated at the approprints time by any convenient means. not shown. On its upper edge each member 11.) i formed with ashoulder 120, and above and adjacent to the shoulder is a pin 121 extending laterally from the rear end of member 38 substantially parallel to the aforesaid member 119. From the foregoing it is clear that if for any reason the slider 100 cannot advance, the inclined toe of the pawl 123, engaging the finger 114 when the member 119 IS advanced, will cam the member 119 upwardly, causing it to swing on its pivotal connection with the. arm 118 and thereafter to pass idly above the finger 11-1; such pivotal movement being permitted by the shoulder 120, which allows the member to pass the guide-stud 121. It is also clear that when no digit key is depressed in the row ofkeys associated with a particular slider the latte! should not advan'ce. To hold the slider under such circumstances, each row of keys has, between it and the rack-portion 104 (Fig. 1) of the associated slider, a stop-plate 30. The latter is carried by an arm 27, pivoted at 36 to the member which supports the keys and also pivotally connected to a depressible universal bar '26. The two ends of the latter are shown at the two ends of the lacy-board, but the inlcri'nediate portion, which umlerlies the studs 2? on the keys, is broken away. Hence when a key is depressed. its lateral stud 25 depressed the universal bar and swings the stop-plale 30 down and out of the path of the rack .101,

up past the stud but is held down thereby and the pawl 12 thus unnpclled to depress the finger 111 into the path of the shoulder 115 on the n'ienibcr ion, Fig. .1. The advancr d sliders 100 are later retracted by the arms 118 which, in their homeward swing, strike the lateral studs 118 on members 107 and thus move the latter and slides 100 back to home position. The actuating members 105 are advanced and retracted by a series of gear segments (one of which is shown at 106 in Fig. 1) on the main rockshaft 60. meshing with teeth on the lower edges of the said members.

2. The arrest of the members 107 to halt the sliders 100, as described in the preceding paragraph, is eflecled by a series of manually depressible digit keys (of which one is shown. depressed, at 12a in Fig. l) overlying the member 107 and in the same or a parallel vertical plane, there being a key in each row for eaci of the nine digits 1, 2, 3, 9. The spacing of the digit keys and the steps on the controlling members 107 be in properly proportioned, as is well understood by persons skilled in the art, it will be seen that when any keyis depressed into the path of the step with which it is associated, the arrest of the sliding member 100 will occar at such point in its path that the extent of its advance is )rop'ortional to the numerical value of the digit represented by the dc pressed key. For example, if the -3-key is depressed, the slider will advance three times as far as when the l-key digit is depressed. In this way the reciprocatory mechanisms a1, 61, 2'1, (Fig.2), each composed of a slider 100, an actuating member 105 and a stopped controlling member 107. and each correspondin to a column or notational order of the items, serve to control the open atlbn of the computing mechanisms, or appa ratus now to be described.

3. (r'cneml description of Mrumuluiiflf] miwhu-nismm T he con'ilnlting mechanisms, one for each notational order, are shown in plan in Fig. and are designated by a2, 62, 2'2. As these mechanisms are alike, except in the minor particulars mentioned hereafter, a description of the structure and operation of one will suflice for all. Each mechanism includes a numeral wheel 150 (Fig. 1) rigidly connected to a co-axial counting or computing gear 151, the connected gears and wheels being mounted to rotate freely on a transverse shaft 152 and arranged with the gears directly above the re spective racks 101 (F 1 and 3) which are carried by the sliders 101' The shaft 152 is non-rotatablv mounted in the forked ends of the horizontal arms of a pair of hell crank levers 153, 15-1 (see Figs. 8. 12. and 2) fulcrumed at 155, 156. the first named lever being mounted on the inside of the frame 4- and the other on the outside of frame 5.

The numeral wheels 150 bear on their peripheries two sets of digits, 0, 1. 2.. 9, and arranged with these digits in proper an gular relation to the twenty teeth on the associatial counting gears 151. The normal position of the bell cranks 153. 154 (which, as described in Par. 3, support the shaft 152 on which the said pars and wheels are mounted) being as shoi'n in Figs. 8 and 13, with the gears out of mesh with the racks 104, it is evident that the direction of rotation of the gears 151 (and the disks or wheels 150) when rotated by the moving racks 10-1 depemls upon the times at which the supporting hell cranks are rocked to depress the shaft 152 and hence brine, the gears into mesh with the said racks. If the. gears are not de 'iressed until after the racks have been advanced and are ready to start home. the rotation of the gears and numeral wheels Wiil be munterciockwise (as seen in Fig. 1, for example) and hence the machine will add; he digits on the numeral wheels being so arranged that H numericai values increase in the opposite direction. as indicated in Figs 3 are i. (in the other hand. if the e (lllfi'lt'SH'ftl into mesh with the racks the fiater need the rotation will be rlockv r evpiained herein itract.

after, thi ma e) no; H116 row Ming or 5, [ir'llihihhf] um; Emmi U adding r/coW-v ]-'?i.--lhe bell cranks 153, 15-1 are rocked, to low er and raise the shaft 152 and hence carry the counting or computing gears into and out of mesh with the actuat niz racks 104 for the purpose explained in Par. 4 by the followin mechanism, the description being confined for the present to the adding function of the machine. At the back of the machine is a transverse shaft 157, Figs. ,8, 12 and 13, journaled in the side frames 1, 5, and having fixed to it at or near its ends two levers 158, 159, connected at their upper ends by links 160, 161, to the dependin arms of the bell cranks 153, 15.4, respective y.so that rocking the shaft in one direction will rock the hell cranks in the opposite direction, as will be readily understood. The shaft 157 is itself rocked by a reciprocatory link 162 pivoted at one end to the depending arm of the aforesaid lever 158 (Fig. 14) and having at its other end a stud 163 extending latcrallv into a curved slot in a. vertical lever 164 fulcrumed at 16.3 on the side frame 1. ith the stud in the bottom of the slot it is plain that when the lever 16-1 is rocked counterclocluvise (as seen in Fig. 14) the shaft 157 is rocked in the same direction, thereby swinging the bell. cranks 153, 151 in the opposite direction and bringing the computing gears 151 down into mesh with the actuating racks 104.

ii. The lever 164 is rocked. for the purpose described in Iar. 5, by the following mechanism: At the top of the lever is pivoted a link 166 which extends rcarwardly (right wardly as seen in Fig. 14) into pivotal connection with the upper end of a lever 1H7 fulcrumed at 168. This fulcrum is carried by a movable element 336 (pivoted at 338) which in the adding operation has no movement and may therefore be regarded. for the present, as fixed. The lever 167 is composed of two flat plates fixed together but spaced apart (see Fig. 15) to straddle the curved or outer edge of a sector plate 169 fixed on the main actuating shaft )0 just outside the frame 4. On the outer face of this section is a curved or arc-shaped locking member 170 which, contacting with the outer tail of lever 16?, looks the same, and the parts connected with it, in the positions shown in Fig. 14, the bell cranks 153 and 154 being in their normal position with the computing gears 151 above and out of mesh with the racks loi. as in Fig. 13, for example. When the main shaft and the sector 169 are rocked clockwise as seen in Fig. 14, for example) through the medium of parts not shown, the locking rib or are 170 is first carried from under the outer half of the lever 167,'thereb v unlocking the lever. In the meantime the sliders 100 and the racks 104 carried thereby are being advanced, as described in Par. 1: and while they are so moving the sector 16!) ontinues it mov ment. Finally, as the actuating members 105 reach their outermost or advanced position the sector brings a stud 171, on its inner face, into engagement with the inner tail or lower end of lever 167 and rocks the lever counterclockwise as seen in Fig. 14). This advances the link 166 and rocks the lever 164-, with resulting depression of the counting gears 151 into mesh with the racks 104, as described in'Par. 5. The retraction of the sliders 100 and Itlt'iiS ill-t then roialm t said gears and the numeral dials i311 in 1 adding direction, as (lesrribei, in Par. 5*. \Vhenever the hell-eranks 1.33. ml. are

rocked for the purpose deserihed. the sin. on their lower ends. norniall engaged lay the notched ends of the spring raised detr-nt arms 1T2. l igs. S and 14. pivoted on the s' i frames 4. rain the detents down and l: in the second notches therein. nhirh slit .e to hold the hell cranks in the positions to which they have been brought.

7. \Vhile the counting gears 1.31 are being rotated'by the racks ltll. as explained in. Far. 4, by the homeward movement. of the racks 104. the sector 169 (Fig. I l) is of course returning to the initial position. This withdraws the lug 171 from ooperation with the lever 167 and. the l'alChS 1| arrive at home position, and the gears 151 therefore cease to rotate. the end of the loelr ing are or rib 1T9 meets the tail of said lever and rocks the latter clockwise seen in Fig. 14), thereby rocking lever 16% in the same direction. retracting link 162, and, through the medium of shaft 15?. arms 1:38, 159, and links 160, 161, rot-king the heli cranks 153, 15-1 back to normal noeition. This raises the gears 15] out of an h with the racks. 10%. and snaps. the studs on the lower ends of the said hell. cranks hack again into the first. notches in the rletents 1T2.

8. When in any given notational order the sum of two digits equals or exceeds ten. it is of course nee my to carry one oi he next higher order. Thin-z l'or oXaniple. it in the units column the nninher live i already in the niaehino and seven is to he added thereto. the units wheel the Hill gear :51 must be rotated to into, and one must he carried over to the wheel 1.30 and rear 15 of the tens column. The ti'lllylli gf operation or transfer will now he do: rihmi 9. rlvldiiiw' mart ni/1451 refinin with 111,1, to Fig. I7.-(onsider Fig. ll. in uhirh in order to simplify the EXPlliiltil'lH'i. will; parts belonging to two eonsecntii'r orders {unite and tons, for example} are lllils'lldlmtl. The disk 173 is assumed to belong to the lower of the two orders. and is fixed to the lowerorder adding gear 151 which is not shown in Fig. 17. The said disk has two teeth 1T4, 175, rot-responding to. though not in initial aliiiemont with. the two Zeros n lhv iowt order numeral Wheel 1517 (not shot-n Fig. 17), and in the adding opt-ration of the machine is rotated in the direction of the arrow by the lower-order rank 191 (not shown) meshing with the aforesaid lowerorder adding gear 151. The remaining arts shown in Fig. 17 belong to the next igher order, a fact which should ho kept in mind throughout the sohjoined description. The shaft i552 pa ses through a, series of frame pieces 1T6, j and 523.

toroitlrtl l'roni lig. ll). having depending IT? and li in the former of which is nnninl'eii a rotatable ram shaft 179. At the rear the frames lTll are supported loosrtr on a transrnr. l tl mounted ioiutalii in the side nies l. 5. lleneo llll trainee lTll partake ol the up and down movements of th shaft 152, tlar. and, in doing" so. hWlll Lf on the shaft lHl'l as an za'tis. The rarlt member 1H1. Fig. 1?. (and ill the other similar rank ineinliersl has its ar end forked. a: shown. and embracing the slnit't lnll. while its forward portion is slolteah as at 1H2 (Fig. 24). to rereive a pin 183 on one of -.i series of lixed frames 1S4 (Figs. 2*] and 25)) supported lay the shaft int; and also by a transverse rod 185 reinovahly mounted at its ends in the side frames 4. T It will therefore he seen that the rack members l l can slide horizontally a limited (listanve. hut eannol more rerti rally. l'lenre depression of the shaft 152 (as explained in Paris 5 and h) carries the gears 151 (Figs. 1 and l. for example) not of mesh with the said raek members 181. \Vith the erirepti n ml the rat-l: member 181, and pants 1955. 04. t in parts shown in Fig. 17 are mounted on or associated with the appropriate frame 176 and ronsetniently swing up and down. in unison with the shaft 15:2. about the shaft EHO as an axis.

10. Referring again to Fig. 1?. the tooth 1T5 on dielt 1T3 lii'ljq'lfli, as stated in the ijf'ttt llllfj paragraph. 11 Wtes: with the add in; gear of the lower of the two orders under mnsiderationl at the tire position. and it i assumed that the number seven is In hradded. The digit. her to! the number seven in the order to whi-xh disk 1T3 belongs supposed to have been tit-pressed, the slider ioo (Figs, 1 and 2) advanced, and lloshaft. 155! (lliQSSLtl. so that the parts illostrattal in 11g. 1? are in the positions eiiou'n, with the gear 252 out of mesh with the earning rank llwl. In the meantime, the can: shaft 1??! has been rotated (ronnterr so as seen in Figs. ET and l-ll h the INF-1H5 hereafter ilesrrili-etl in l'ar. 14. so that rain 186 (Fig. lTl, fixed thereon. has been turned to the position shown in dotted lines and therefore out of engagement with. t e foot 38'? on the lower end of the lever 1:13. The slider til-t) and rank l ll no more home. and dish 1T3 (Fig: 1'?) is their air the direction oi the arrow. the tooth til past the depending: pUlilifll dog 18%) on the end of the three-arnieri h vrr Whirh is fulornmed at 190 mi the appropriate frame l'i'tl (Fig. 21). first swinging: said log toward the left (as seen in Fig. 1?) until it stopped by its upper linger 139i; striking the stud 189?: on the e ter E9 It will he understood that the dog and, its fingers lSi' a. 1541 and the stud 1-891). er so ne gortioneo and arranged that the tooth 175 will not pass the dog, and hence completely rock the lever 190, until the disk 173 and its gear 151 (not shown in Fig. 17) have been turned one step beyond the zero position. The rear end 191 of this lever is bent to engage a curved slot 192 in the upper arm of a detent 193 which is pivoted by its lower arm to the leg 178 of the frame 176 (Fig. 25) and has a horizontal arm terminating in a laterally bent finger 19-1 in the plane of a cam 195 fixed on shaft 179 alongside of the adding cam 186; said cam 195 being shown (in Fig. 17) inbrokeu lines in the position occupied by it when the adding cam 186 is in its dotted line position. As tooth 175 passes the coopel'ating dog 189 of lever 190, the latter is rocked clockwise (as seen in Fig. 17), thereby depressing the rear end 191 in slot 192 and permitting the detent 193 to be swung by the spring 196 (Fig. 29) connected to the detent and to lever 190, bringing the finger 194 of said dctent into the path of cam 193. 'lln-w movement of the detent brings the flat or horizontal portion 197 of slot 192 over the bent end 191 of le ver 190 and so holds the level with its said bent end depressed and its other end raised.

'11. The lever 190 has fixed to it a pin 198 overhanging a locking pawl 199 pivoted on the frame 184 (Fig. 19) and normally held, by a coil-spring 200 connected to the stud 199a (Fig. 17), with its vertical tooth 198a in the path of a depending tooth 201a of the finger 201 on rack member 181, which rack member, it will be remembered, belongs to the higher of the two numerical orders un der consideration. The described actuation of lever 190 (Par. 10). by the tooth 175 therefore depresses the locking pawl 199 out of the path of finger 291 and leaves the rack member 181 free to advance at the proper time; the finger 20-3. fixed on shaft 1H9, having been swung do\vn out of the path of the tooth 29 on the s])i'itigile i1'cssctl pawl 201 (pivoted on the rack member 191) by the actuation of shaft 18 as described in Par. '15 hereafter. Lcvcr 198 (Fig. 17) is fulcrumed at 205 on the lower arm of lever 190, a d by its forked upper end engages a stud 201; on the side of the carrying or transfer rack 181. The rocking of lever 190 clockwise by the tooth 175 therefore performs still another function. namely. it rocks lever lss clockwis on stud 206 as a fulcrum (the rack 181 being held against rightward movement by shaft 18") thereby throwing the foot 197 into the path of the cam 1 which. it will be rcmcmbcrml. has previously been turned to the dotted line posi tion. The shaft 152 is now raised (as described in Far. 7,) bringing gear 151 into mesh with thc ra k menibcr 181. after which the cam 186 is turned (clock-wise) back to the full-line position. During this move ment the cam engages the foot 187 and rocks the lever 188. Since fulcrum 205 cannot move,-.by reason of the level 190 being held by the slot 192, previously described at the end of .ar. 10, the lever .188 must rock on the fulcrum 205. This throws the forked upper end of lever 188 forward (toward the left, as seen in Fig. 17) thus advancing the rack 181 one tooth, and rotating the gear 151 a like distance in thc adding direction, indicated by the arrow; at the same time bringing tooth 2010, on finger 201, to the left of tooth 1980. on the locking pawl 199, as in Fig. 27. The carrying or transfer from the lower to the higher order is then complete. Just after the cam 186, rotating clockwise from the dotted line position, actuatcs lever 188 to advance the rack member 181, as described, the cam 19') meets and lifts the end 191 of detent 193. In the meantime, the linger 202 has been raised by shaft 180, on which it is fixed. bringing it behind or tp the right of the tooth 203 on pawl 204 (as in Fig. '27), with the result that the rack 181 is held positively in its advanced position. Hence raising the detent 193 by cam 195, thereby withdrawing shoulder 19?. from the finger 191, permits the spring 196 (Fig. 26) to swing the lever 190 counterclockwise on its pivot 190a to the normal or initial position shown in Fig. 17, and allows the pawl 199 to be drawn up by its spring 200, Fig. 19, thereby bringing the tooth 1984 into the path of tooth 29111 to the right of the latter and locking the carrying rack 181 in its leftward or advanced position. The return of lever 190 to initia position rocks lever 188 counterclockwise (as seen in Fig. 17) on stud 206,

thereby withdrawing the foot. 187 of said level 188 from contact with the (am 181'. At this stage the machine comes to rest, with the rack 181 advanced and still in mesh with the gear 151. and with the stud 207 on the rear end of rack 181 adjacent to the edge 208 of the notch in the finger 202, as in Fig. 27.

1 2. (fonditiow. 0f ac-rrumaulafzing mrclmnism aftercomplction of curry ing.At the next actuation of the machine, whether adding, totaling or merely idlc. the shaft 152 is first depressed at the appropriate time, as described in lars 5 and ti, thereby disengaging gear 151, Fig. 27, from the rack 181.

To depress shaft 152, as explained in Pars 5 and 6 just referred to, the links 160 and 232 are shifted toward the left, Fig. 1-1, thereby rocking lcvcr 232a which is connected to the last-named link and fulcrumed loosely on the end of shaft 180. The upper end of this lever rocks an arm 232?) which is fixed to the end of shaft 184a and which therefore rocks said shaftcounterclockwise as seen in Fig. 14 and clockwise as seen in Fig. 19. This shaft has a series of lingers 1847) to cooperate with the studs 19911 (in the locking pnwis 199 (Fig. 19); S0 that as the shaft is rocked in the operation of depressin Shaft 152 to carry the iuhiing gears 151 out (if mesh with the carrying 01 transini' racks 181 the ,pawis .199 are deprnssed out of engagement with the fingers E201 thereby having the racks free to move bank min home pns'itinn. Then gears again into mesh with the. minim 181;

and sinve link is cnmwctwi with shaft 184a as expiuined above, the :wiim'tinn {if the link rocks the shaft. :nnnternlnciiwise. as seen in Fig. 19. thereby p011 itting the pawis' 199 t wing up into Ina-king 'yngitinn H54 in Fig. 1?. At thv name than. the inii'nciifin (if Hie rack member ,191 s ingzs levnr 1549 nlmkwiw (as seen in Fig. 17) nn its fulcrum 23W). them by venturing the h nt "1?"! to initizii pnsiiinn but. nni illiu nunmvt \i iii; tin. mun N13, sinr'u the hiiiivi hair nirmnly iii-0n mmtmi in the. LiOiiZEii-iihfi pnsitimi. ThPn if no item had hem] ant up 011 .110. kn imni'd. in" if ihb Pm Sit up (inns n01" nm-cwsii atn min-iii; ing" opei'aiinn. tin mun 1% EPiHI'l i ii tn the initial positinn. shm sn in i'ni iifnis in Fig. 1'5.

13, Add-iii? C(Mk'jf/Hfl b42331. (inf wimp tion. of .wm'n 'it is wiihnt ihiii 5: U'HD i PI or carrying mwhnnimn nmsi iJi inw. k191i between each notatimmi ii-1101'. and tho. next highni OifiK-J. and in the preseni nmcrhinn there are night sin-h in!ei'uunnvctvii unmpnt. ing mechanisms. in: iia iii'uird in Fig for example. if zii n ni'irlvnt that the several transfer YfiPfihflIiiHfllS cannot be operated sinniifnnnmisiy, but iii irSi hr. Ol'lid'fililfEi in mwsinn fi'nm the iilvi lfii Miler m the high est. This sur'ces iw riporzitinn n'f ihv carrying innvhanisms asruieii ivy arranging the ripemtiw edges of he Hiding cams 515. if), 515. on the shaft 179 in the 'fmm of n helix. as indicated (ii rhmmniimiiy in Fig. 23 n whiCh thv (1111 9 are (iQYiiOPGd in ii plane. Iflifilillliii 5+ 'i'iiffi is: m; ti'zmai'iaimi-nrrying in the i0 5. L-1i {)Tiiii. nu adding mm and carrying iEUi-l ww'i iw pmvideiii for such 0min. A F ililiiit} iihk (Iii? (Fig. is pl'ff-fiidfdii fin mii as a Spacing 22' mi 1hr Qhni'i 379. Since there. nu can vying in tmnai'm min this highcat ni'deri', {in iiYi"? W l :inii disk 1 whivh (Mild eithnnnia-zv in:- pifiviiifii l'hvi'vfox are nmitlmi.

i i. Th i'jdiil Si ['39. ihu pilr imrn and function (if which in. ah; iii-ed in Pzuh S. 10

and 11. i9 rotntmi a? the nppmpi'iai'e irv SiEHItS filht in one dircctirin and than in he. other, by the fuliowing dnvicus: On the right. hand and of said shaft 179 and fixed than in is El pinion 210, Figs. 52. F, 9 and l in mosh with :1. rack 211 which is snnpnrtwi ivy a winging frame 232 on Said shaft. The. War and of the rack is pivoted to the iiypvr end of an arm 213 fixed t0 the ()ufq' end (if n SHld 214. Fig. 11, i'ntntaiiiy muimihi in.

the Sifk frame 5 and having fixmi to ii. ai iis oihnr nnd an (u-m 21:: arranged at an {High in the! first named arm: The inn arms.

ihm

vmntituting n bani-rank invei. Th9 iii) is pivntvd tn omnmi (if a iii-1i-iii1ii All. the innni end of which is pivoted in an iii-n1 iZiT n'hivh is itseif pivntmi at 21% mi tine aide fx'mno 5. The link 21% is; furiiwaii wiih i lengitudinal emu sint 219. engagvii by a Stud 5225: {in thv ndjai'eni', shin 9f the geursegment 106, which is fixed in and 1391\(9 In by ihv main hrifl (i0. Nhen thesaid Kr segmeni i.- swung munterciockwise ins. 5-19? in Fig. ii} the stud 22 raises thn iinii 215 uni'ii 11H: shui 93m ns into the pin-i iii the mini gint 213% i is PUiiQPniI'iF shaft 30. Thin lifting mm'uinvnt t. and .iiflfi'. hut owing 1.0 the flint i1 :i 'ln El -2- is sew-mi tinu s longer than 93!; tinninwmnni at link 216 is suiiininni t0 mivmn-e tiw rack 3H a distanm :iimlii Prgna! in its \Yiiuhiwgth. tinirchy uniting Hm mm shaft ZTii {'4J11lihilfiOCiUYl. v. (in the we i' ii'n fir rrhiviiwiHiin: .i .nnf 0i lint stud. ii i. :ii first imwos iiiif. through the; mncnntriv nn-{inn {)i the min slot 219. hui. iuwaiii ihv nnii ni' its, mm'nnwnt. ii. enters rhv nil-ventinpm'iiun and (giiii-tkiy (iIPFfHSiS tin arm 2&5. This i'tNiS the hingni'mill-i $01111!filjthhfkfiiiS? iuni i'n iiiiiy i'i-tia ris i-in: i'zu'k 11] Yr,- inii'ini Pfifiiih'll], whini:inoveinnntuf ii! 1-: i; 1'0: nins ihv pinion 31G Hiiii rain ahafi 1TH '-h)(icwi.-.e. iiiv purpns uf ci'npinying 2i Pi'iUiP 'i mviz in iwtiiatn tingiininn 210 is in pernii thewri'imi mnwmnnt 0f thn pinion {and thn mini Simfi. ii i n'hh-h arying the snmvi in will pzm'v wii'h iiii' (n t 1" is iiif fiifiii i in PM. 1) .viiiimii can. np meciniiiu wiary mavenivm. of tiin pininn and shaft nsui witimni' iiiacnnnniiing the pi inn finin iiw rack. \Vhun tin? shaft i525 and H3193." iii? arr do piv-ssmi m FZIiNLi 'iiw i-nni; 'inpi I siighiiy on ii: pii'nini wm'wm E: iifiz the aim 213.

1.5. The nhai i 180. Whii'ii. at' Par s 1 ii and 13. ii; im-ineii M. 5 roper iizma in the :Hhiinz! QFWQiiiGB; is avi'nntmi by ii'ie fnihminp; niecinmimi; (in the inft and of Hm simi'i 1% Figs. 12 iiii i 14 15 a 

